Printer ink cartridge



FIG. 1 is a front elevation of a printer ink cartridge according to thepresent invention;

FIG. 2 is a rear elevation thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a top, front and right side perspective view thereof.

The ornamental design for a printer ink cartridge, as shown anddescribed.